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Phisalixella tulearensis (DOMERGUE, 1995)

IUCN Red List - Phisalixella tulearensis - Least Concern, LC

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Higher TaxaPseudoxyrhophiidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymStenophis (Phisalixella) tulearensis DOMERGUE 1995
Phisalixella tulearensis — NAGY et al. 2010 
DistributionMadagascar (forêt de Ankarafantsika, région de Tulear)

Type locality: Ampijoroa  
TypesHolotype: MNHN-RA 1988.0319 (wrongly given in the original description as 1988.379, I. Ineich, pers. comm. 30 Aug 2018) 
DiagnosisRe-diagnosis of Phisalixella tulearensis (Domergue, 1995): The species was described from western and south-western Madagascar. Exact distribution is unknown, probably between Ankarafantsika and Toliara according Domergue (1995). In its external morphology P. tulearensis is similar to P. variabilis, both in mensural and meristic features. The only known character differentiating these two species is the higher number of ventral scales in P. tulearensis (257–278 vs. 244–264 in P. variabilis) [from NAGY et al.2 010]. 
CommentSynonymy: VENCES et al. 2004 synonymized Stenophis (Phisalixella) tulearensis DOMERGUE 1994 with Stenophis variabilis (now Phisalixella variabilis). NAGY et al. 2010 revalidated tulearensis. WALLACH et al. 2014: 675 maintain tulearensis as synonym of Stenophis variabilis.

Habitat: not arboreal (Harrington et al. 2018). 
  • Domergue, C. A. 1995. Serpents de Madagascar: Note liminaire sur des espèces nouvelles du genre Stenophis Boulenger, 1896 (Colubridae: Boiginae). Archives de l'Institut Pasteur de Madagascar 61 (2): 121-122 [1994]
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Nagy, Z. T., Glaw, F. & Vences, M. 2010. Systematics of the snake genera Stenophis and Lycodryas from Madagascar and the Comoros. Zoologica Scripta 39, 426–435 - get paper here
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